1. University of Vienna, Computational Science Center, Oskar Morgenstern-Platz 1, 1090 Wien, AustriabMedical University of Vienna, Center for Medical Physics and Biomedical Engineering, AKH-4L, Währinger Gürtel 18-20, 1090 Wien, Austria
2. University of Vienna, Computational Science Center, Oskar Morgenstern-Platz 1, 1090 Wien, Austria
3. Medical University of Vienna, Center for Medical Physics and Biomedical Engineering, AKH-4L, Währinger Gürtel 18-20, 1090 Wien, Austria
4. University of Vienna, Computational Science Center, Oskar Morgenstern-Platz 1, 1090 Wien, AustriacJohann Radon Institute for Computational and Applied Mathematics (RICAM), Austrian Academy of Sciences, Altenberger Straße 69, 4040 Linz, Austria